I’ve checked both inbox and junk folders and I’m sure my settings isn’t blocking incoming emails.
The activation email fails to show up even after 6 hours of waiting and two resends neither help.
The Outlook email address can normally receives other emails.
Is this common or just me?
I believe we’ve had such a report before but couldn’t get a quick resolution on Microsoft’s side.
The vast majority of users login through a 3rd party service so the activation e-mail is seeing relatively little use overall.
Thanks for the info!
By the way, is it possible for me to delete that account?
I can’t receive any activation email so I can’t login to delete it as normal…
Like, can I send a email from that outlook address to some support email to prove my identity?
Yeah, I can do that for you if you e-mail me (stgraber@stgraber.org) from that account.
Email sent and thanks a lot for your help! 
And account deleted.